Development

Add-ons Discuss here how to develop add-ons and ask conceptional questions on the technologies, concepts, etc. Misc Discuss here miscellaneous stuff around development of openHAB. IDE & Build Discuss here how to use/setup the IDE and build systems. Features This category can be used to inform user and other developers about new features under development and to discuss details about them. Marketplace This category can be used by everyone that is looking for custom development work around openHAB or professional services like help on installation / customisation or similar tasks. Documentation Topics around how the documentation is organized, built and structured.

Topic	Replies	Views	Activity
About the Development category Development	0	2458	January 18, 2019
Supporting spot energy pricing Add-ons	79	747	March 7, 2026
Rules and rule templates YAML integration Development rules , template , rules-dsl , yaml	136	709	March 6, 2026
Solvis heat pump - Should I create a binding (and if yes, how complex should it be)? Add-ons modbus	3	128	March 3, 2026
Pax Log4J logging not working in eclipse IDE & Build	0	23	February 26, 2026
Observability support for openHAB based on OpenTelemetry Misc observability , opentelemetry	5	240	February 19, 2026
Upgrade instructions to add new Channel Group? Add-ons	2	79	February 15, 2026
Problems creating dynamic channels Add-ons	1	61	February 13, 2026
Eclipse files in Git repos Development	9	147	February 3, 2026
MainUI: How to handle HTTP status 204? Development main-ui	2	87	January 29, 2026
Usage of org.apache.commons.math3 Development	7	84	January 29, 2026
Feature Request: Filter Items by State NULL/ON/OFF in Admin Interface Features featurerequest , items , itemstate , filter	2	39	January 29, 2026
VsCode: No such compiler 'eclipse' IDE & Build vscode	4	84	January 27, 2026
Examples of Image channels and jpgs? Add-ons	4	79	January 25, 2026
VSC always change .classpath file of each bundle IDE & Build visual-code	7	1174	January 24, 2026
Feature: Native App for Sailfish-OS Features	3	134	January 20, 2026
Lambda Heat Pump in OpenHab Add-ons modbus	115	2393	January 13, 2026
OH 5.1(?) Discovery bug (I think) Add-ons discovery	4	116	January 10, 2026
Eclipse 2025-12 - Oomph installer fails Development	7	87	February 20, 2026
State Filter (Range Filter) Profile Features transformations , filter	84	1240	January 6, 2026
Maven build for the first time ;-) Development addons	5	86	February 17, 2026
Eclipse code formatter settings for OH IDE & Build	0	56	December 30, 2025
OH, Threads, and Java Project Loom Misc	19	739	December 25, 2025
Installing KAR add-ons through the addons folder Add-ons karaf	35	530	December 22, 2025
KNX secure - initial implementation Add-ons knx , binding-development	21	2779	December 21, 2025
How to run OSGi tests IDE & Build	0	44	December 21, 2025
Null type mismatch in openhab.core IDE & Build	1	60	December 21, 2025
Create complexType directly into binding Add-ons	2	64	December 20, 2025
"Demo app" stuck at startlevel 10 Development	40	196	January 29, 2026
MQTT device discovery payload Misc mqtt , auto-discovery , homeassistant	6	221	December 17, 2025